1.

the length of rectangle is three times its breath.if the perimeter of the rectangle is 40cm,find the length and breadth of the rectangle​

Answer»

Answer:

\large{\underline{\boxed{\sf <klux>LENGTH</klux> = 15 \: cm}}}

\large{\underline{\boxed{\sf Breadth = 5 \: cm}}}

Step-by-step explanation:

Let the breadth of rectangle be x and the length be 3X.

Given that ;

Perimeter of rectangle = 40 cm

⇒ 2(l + B) = 40

⇒ l + b = 40/2

⇒ 3x + x = 20

⇒ 4X = 20

⇒ x = \sf \dfrac{20}{4}

⇒ x = 5

Therefore, the dimensions of rectangle are;

  • Length = 3x = 3 * 5 = 15 cm
  • Breadth = x = 5 cm.

Hence, the length of the rectangle is 15 cm and breadth is 5 cm.



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